parisc: support R_PARISC_SECREL32 relocation in modules

The parisc kernel doesn't work with CONFIG_MODVERSIONS since the commit
71810db27c1c853b335675bee335d893bc3d324b. It can't load modules with the
error: "module unix: Unknown relocation: 41".

The commit changes __kcrctab from 64-bit valus to 32-bit values. The
assembler generates R_PARISC_SECREL32 secrel relocation for them and the
module loader doesn't support this relocation.

This patch adds the R_PARISC_SECREL32 relocation to the module loader.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org	# v4.10+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index a0ecdb4abcc878b3805d7a2d0f845272b1fc372d..c66c943d93224f342cb71c97bd6a690bf8fb225b 100644 (file)
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -620,6 +620,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
                         */
                        *loc = fsel(val, addend); 
                        break;
+               case R_PARISC_SECREL32:
+                       /* 32-bit section relative address. */
+                       *loc = fsel(val, addend);
+                       break;
                case R_PARISC_DPREL21L:
                        /* left 21 bit of relative address */
                        val = lrsel(val - dp, addend);
@@ -807,6 +811,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
                         */
                        *loc = fsel(val, addend); 
                        break;
+               case R_PARISC_SECREL32:
+                       /* 32-bit section relative address. */
+                       *loc = fsel(val, addend);
+                       break;
                case R_PARISC_FPTR64:
                        /* 64-bit function address */
                        if(in_local(me, (void *)(val + addend))) {